Check-valve.



QFRANK RICE,

`To all whom it may concern .f

Be it known that I, FRANK citizen'. of the United States ,of America, re-

sTATasrATENT OFFRE- orrsTaoI'n MICHIGAN, AssIGNoRTo 'AMERICAN-TAI BUsHfeo., or DETROIT, MICHIGAN, A CORPORATION or MICHIGAN.v i

CHECK-VALVE.

siding at Detroit, in the county of Wayne and'State of Michigan, haveinvented certain new and useful Improvements in Check- Valves, of whichthe following is a specification, reference being had therein to the accompanying drawings.

This invention relates` to a check valve for beer tapping apparatus, and the objects of my invention are-to-l providea valve, ofthe above type that can be easily detached from the apparatus and the valve seat thereof ground or foreign matter removed therefrom to insure perfect seating of the valvular member, and to provide a valve that can be advantageously used in connection with .beer dispensing apparatus to insure cleanlmess and a positive control of air or gas used 1n connection with the apparatus.

Other objects of my invention are to provide a valve of the above type that can have the valve seat thereof ground or cleansed without disassembling the parts of the valve, and tov provide a simple, durable and .inexpensive valve that cannot becomeaccidentally displaced due to excessive gas pressure in a vessel or excessive pressure from an air pump. Y

Further objects of my invention are to provide a valve that cannot become fouled or choked by the liquid contents of a vessel, or injuriously affected by the liquid or gas therein, and to provide a check valve that can be advantageously used in connection with that type of tap andbushingdisclosed by my application filed June 8th, 1912, Serial No. 702,456.

With the above and other objects in view, the invention resides in the novel construction and arrangement of parts to be hereinafter specifically described and then claimed, and reference will now be had to the drawing, wherein- Figure 1 is a longitudinal sectional view of the check in connection with a tap and bushing, and Fig. 2 is a perspective yview of a valvular member adapted to form part of the valve.

A valve in accordance with this invention comprises a body l having one end thereof circumferentially grooved or stepped to form annular ribs 2 that afford a positive grip for a tube or hose (not shown) by Specification of Letters Patent. Patented Dem 21, 1915. Appli-cation le'd April 10, 1914. Serial N o. 830,849. Y

which the valve bodymay-vbe .connected to the,."connection 4l of. a tap and bushing 5. `AdJacentto the threaded enlargement?) isV an annular flange or collar 6 and interposed between the collar 6 and the enlargement 3 is an annular gasket or washer 7 forv engaging the end of the connection 4 to establish fa non-leakable connection between thezvalve bodyand such connection. The valve body, contiguous to the annular flange or collar 6 has flat facets 8 to accommodate a wrench or other instrument employed to tighten the threaded enlargement 3 in the connection 4.

The valve body 1 has a longitudinal bore 9, which, for the greater part of its length is enlarged, as at 10, and the enlarged end of the bore terminates in a cage 11 having an annular valve seat 12.

Loosely mounted in the cage 11 of the valve body 1 is a valvular member 13 adapted to engage the seat 12 and close the inner end of the bore. v.The valvular member 13 is preferably cylindrical and has oppositely disposed sides thereof provided with at facets 14 allowing air or gas to freely pass the valvularv member when unseated. The member 13 has a rectangular stemV 15 extending into the enlarged portion or end 10 of the bore 9 and said member has the opposite end thereof provided with intersecting grooves 16, which permit of a screw driver or other suitable instrument being placed in engagement with the valvular member to rotate the same upon the seat 12 and thereby grind the seat and remove foreign matter from the same that would otherwise prevent a perfect seating of the valvular member and thus impair the usefulness of the valve. y

To retain the valvular member 13 within the cage 11, the enlarged end 3 of the valve body 1 has an annular stop flange 17. that is bent or turned in to coperate with the valve body in forming the cage 11. This inturned flange prevents the valvular member from becoming accidentally displaced, due to excessive pressure and after the valvular member 13 has been once installed it is an extremely easy matter to maintain the same in operative condition. While the flange 17 prevents displacement of the valthe insertion, of srevv driver ornother structural elements are susceptible to such *variations and modifications" as `fall Within Vthe scope of thesappended claim. f 'What I claim is:

' 'Ifhe eombination with: a beertap having a eonnejetion, of a valve mounted in said tap `Connection 'and comprising a valve body Vhavingalongitudinal bore formed therein with one'end'of said bore enlarged and pro.-

vided with va valve seat, avalvular member iii-the enlargedhead of the said Valve body,

rditer as at area an "having 'aan facetsrspaed' from vthe walls of theehreni stein' carried by Said. valvular memberfland l"extendingintotlietborenf said valve body,-

It is thought that the utility of thefeheoky-; valve Will be apparent Without fiirtlriQern' eecriptiontend nhlein the drawing there' isflustfatdpreferel'embodiment of the' invention, it is to be understood that the? AVKsaid .valve''body Ahaving the end thereoi1 re- Hdiib'ol' to provide an annular inturned relativev thin s top flange coperating .3 the Walls of the enlarged end of the bore' of said within the enlarged end of Said valve body, and said stop flange providing an opening vf'ixlosing the' end of said valvular member body i'nretaini'ng said valvular member to facilitate rotating the same'insadvalve body.

In in' presence of-tvvo Witnessesv FRA-NK E. RICEi W itnesses: y

lANNA M. Donk,

G. E YTMCGRA'NN.

testimony vvhereo'f I' alii-X vmyfsignnature 5;-

pivurplies, of this patent may be obtainedfor five cents each, byfaddressnlg. the Commissionermf intents.,

. 1 l Washingtomll. 

